Tham khảo Maai

  1. ↑ Jones, Todd D. “Angular Attack Theory: An Aikido Perspective”. Aikido Journal.
  2. ↑ KENDO, The Definitive Guide by Hiroshi Ozawa. Kodansha Int. 1991, pp.38-41
  3. ↑ Kendo, Elements, Rules, and Philosophy by Jinichi Tokeshi, University of Hawai'i Press 2003, p.97
  4. ↑ The Kendo Reader bởi Noma Hisashi, Kyoshi (1910-1939), dịch bởi Norges Kendôforbund 2003